Improvement of the technology for preparing a sand mold and a rod mixture for casting a D49 type diesel engine cover from high-strength cast iron

  • Nodirjon Tursunov Tashkent State Transport University
  • Uchkun Rakhimov Tashkent State Transport University
  • Talgat Urazbaev Tashkent State Transport University
  • Sherali Mamaev Tashkent State Transport University
Keywords: engine cover, sand mold, rod, quartz sand, alphanond, navanol, zircofluid, liquid glass, technical water, mold and rod models

Abstract

This article highlights the issues of improving the technology for preparing a sand mold and rod mixture for casting a D49 type diesel engine cover from high-strength cast iron. In the research process, the composition of mold and rod mixtures, their physical and mechanical properties, and technological indicators were thoroughly studied, and their optimal composition was determined through practical tests. In particular, the following raw materials were used in the preparation of mold and rod mixtures: Zircofluid 3139 KBV (anti-burn coating based on zirconium silicate and isopropanol), T03 hardener, Alfabond 6 resin, quartz sand (98-100%), treated with Novanol 165 (5-6%), liquid glass (10-12%), and technical water (2%). High-activity binders were used in the rod mixture, which ensured the precise and smooth shape of the casting. As a result of the conducted research, effective technological solutions have been developed that allow obtaining high-quality and durable casting products.

References

[1] Турсунов, Н.К.; Алимухамедов, Ш.П.; Тоиров, О.Т. Разработка эффективной технологии получения синтетического чугуна в индукционной тигельной печи. Universum: технические науки: электрон. научн. журн. -2022. 6(99), июнь, 2022 г.
[2] Kren, A.P. Determination of the Strain-Hardening Exponent of a Metallic Material by Low-Speed Impact Indentation / A.P. Kren, V. A. Rudnitskii // Russian Metallurgy (Metally). – 2019. – №. 4. – P. 478–483. DOI: 10.1134/S0036029519040220.
[3] U. T. Rakhimov, N. K. Tursunov, and S.E. Tursunov. “Improvement of production technology for spheroidal graphite cast iron with increased strength” American Institute of Physics Conference Series. Vol. 3045. No. 1. 2024.
[4] Rakhimov, U., & Tursunov, N. (2023). Development of technology for high-strength cast iron for manufacturing D49 head of cylinder. In E3S Web of Conferences (Vol. 401, p. 05013). EDP Sciences.
[5] Tursunov, N.K., Semin, A.E., Sanokulov, E.A. Study of dephosphoration and desulphurization processes in the smelting of 20GL steel in the induction crucible furnace with consequent ladle treatment using rare earth metals. Chernye Metally, 2017; (1): 33–40.
Published
2025-03-31
How to Cite
Tursunov, N., Rakhimov, U., Urazbaev, T., & Mamaev, S. (2025). Improvement of the technology for preparing a sand mold and a rod mixture for casting a D49 type diesel engine cover from high-strength cast iron. Journal of Transport, 2(1), 172-176. https://doi.org/10.56143/jot-journal.v2i1.270
Section
Automotive Service